That's just a wrapper for jdtls. I mean it works on some projects, but fails on many gradle builds and is basically just running the Eclipse IDE headlessly.

This is probably the one contender:

https://github.com/georgewfraser/java-language-server

and it kinda works, but it's also a bit lacking.

Metal, the Scala LSP, seems to do Java just fine. When using it in VSC, I feel the limitations compared to IntelliJ are more coming from VSC than from the LSP. Dependencies etc just resolve fine, it is just the UI that is not as polished as IntelliJ’s.

I try VSC with Metal twice a year. It works fine for small projects. But for bigger projects it lacks the more holistic approach that IntelliJ has and feels more like a text editor with smarts bolted on than an IDE.

I’m using Zed a lot as well for Golang and a bit for Rust. For Java it is also hard to use and lacking the same polish.

The problem is using Gradle, for starters.

oracle has some lsp based on netbeans, but it's not great either